25049042 has 6 divisors (see below), whose sum is σ = 37584183. Its totient is φ = 12520982.

The previous prime is 25049039. The next prime is 25049107. The reversal of 25049042 is 24094052.

25049042 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in only one way, i.e., 12524521 + 12524521 = 3539^2 + 3539^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3539.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5309 + ... + 8847.

Almost surely, 2^25049042 is an apocalyptic number.

25049042 is a deficient number, since it is larger than the sum of its proper divisors (12535141).

25049042 is an frugal number, since it uses more digits than its factorization.

25049042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7080 (or 3541 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 25049042 is about 5004.9017972384. The cubic root of 25049042 is about 292.5928485038.

The spelling of 25049042 in words is "twenty-five million, forty-nine thousand, forty-two".